Battery Charger Update -- I warmed the transformer in the over for about an hour on low heat. I then thoroughly saturated the windings and core with shellac. Re-installed the transformer into the case, hooked up the wires and put power to it. The transformer was substantially quieter. Quiet enough to now notice one of the capacitors was buzzy. It had 2 caps, 1- 6 Mfd and 1- 4 Mfd. So after a little search I found replacements at Grainger for $7.50 each. They went under the title of a motor starting capacitors. Same thing.
Today I got it re-installed back in the boat and I was satisfied with the results. Slight detectable hum can be heard in the cabin. I usually only have the charger on when I'm not there at the boat so no harm. Roughly $30, a little research saved and a little labor me a couple of hundred. Happy Day!
Pappy Chris